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ASTM A106 / ASME SA 106 Gr.B Carbon Steel High Frequency Welded U Fin Tube

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ASTM A106 / ASME SA 106 Gr.B Carbon Steel High Frequency Welded U Fin Tube

Brand Name : YUHONG

Model Number : U-Type Fin Tube

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015

Place of Origin : China

MOQ : 1PC

Price : negotiable

Payment Terms : T/T, L/C

Supply Ability : 500 tons per month

Delivery Time : according to quantity

Packaging Details : Ply-wooden Case /Iron Case

Standard : ASME SA106/ASTM A106

Tube Material : Gr.B

Fin Material : Carbon steel

Type : U-Fin Tube

Packing : Plywood case/Iron case

Application : heat exchanger,Cooler

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ASTM A106 / ASME SA 106 Gr.B Carbon Steel High Frequency Welded Fin Tube U-Type


Overview

Finned tubes are a type of heat exchange element. They are mainly used to improve the heat exchange efficiency. Fins are usually added to the surface of the heat exchange tube to increase the outer surface area (or inner surface area) of the heat exchange tube, thereby achieving the purpose of improving the heat exchange efficiency of the heat exchange tube.

Finned tubes have the characteristics of high heat transfer power, large heat dissipation area, long service life, and wide temperature control requirements. Its heat transfer area is several to dozens of times larger than that of light tubes, and has the effect of strengthening heat transfer and reducing resistance.

In view of the fact that finned tubes are installed on mechanical equipment such as boilers and must withstand the test of continuous high temperature, when selecting finned tubes, it is necessary to select finned tubes with more outstanding performance as follows. Finned tubes have strong corrosion resistance. If the selected finned tubes are not corrosion resistant, they are prone to corrosion under continuous high temperature conditions.

Secondly, finned tubes have strong wear resistance. If the finned tubes are worn, the heat transfer effect will be disturbed to a corresponding degree. Therefore, finned tubes with strong wear resistance should be selected.

Third, the finned tube has low contact thermal resistance. Only by choosing finned tubes with low contact thermal resistance can the performance of the finned tube be maintained under continuous high temperature conditions; the finned tube has strong stability. Only by choosing finned tubes with strong stability can the heat transfer performance not be affected under continuous high temperature conditions; fifth, the finned tube has good dust resistance.

ASTM A106 Gr.B HFW U-shaped finned tube is a heat exchanger tube made of carbon steel with a unique "U" shaped fin profile. The "U" shaped fins are welded on the outer surface of the tube in a spiral manner to form an extended surface, which can improve the overall heat transfer efficiency.

Chemical position of A106 Gr.A / B/ C

Grade A B C
C 0.25 0.3 0.35
Mn 0.27-0.93 0.29-1.06 0.29-1.06
P 0.035 0.035 0.035
S 0.035 0.035 0.035
Si ≥0.10 ≥0.10 ≥0.10
Cr 0.4 0.4 0.4
Cu 0.4 0.4 0.4
Mo 0.15 0.15 0.15
Ni 0.4 0.4 0.4
V 0.08 0.08 0.08

Tensile requirement of ASTM A106 grade A, B And C.

Grade Grade A Grade B Grade C
Tensile Strength, min., psi 48000 60000 70000
Yield Strength, min., psi 30000 35000

40000

Applications

Power Plant Boilers

Reheaters

Economizers

Petrochemical / Refinery Heaters & Reformers

Convection Sections

Waste Heat Recovery Units (WHRUs)

Thermal Fluid Heaters

Industrial Steam Boilers

ASTM A106 / ASME SA 106 Gr.B Carbon Steel High Frequency Welded U Fin Tube


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ASTM A106 / ASME SA 106 Gr.B Carbon Steel High Frequency Welded U Fin Tube Images

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